The correct option is B Apolysis
The segments of tapeworm or Taenia solium are called proglottids. Small groups of gravid proglottids regularly detach from the posterior end of the strobila and pass out with the host's faeces. Shedding of gravid proglottids is termed apolysis and the tapeworm exhibiting this phenomenon are called apolytic,
So, the correct answer is option A.